http://lod.ehri-project-test.eu/isCopyOfRelations/41ce5738-70d5-11ed-89cf-7ddb76c7c97b an entity of type: IsCopyOfRelation
"Chamber for Arts and Culture and Subchambers
Reichskulturkammer und ihre Einzelkammern (R 56)" was copied from "Reichstheaterkammer"